In The Titan's Curse, the third installment of the Percy Jackson series, the presence of an oracle dramatically sets the tone for a darker and more intense storyline. As the characters delve deeper into the world of ancient Greek mythology, they find themselves facing formidable challenges and dangerous adversaries.

The oracle, a mummy-like figure known for dressing in hippie clothes and hanging out in the attic, is the source of the camp's prophecy. Normally, she rarely has been seen outside of the attic, that is until the very moment she comes to the campsite to speak of what is to come to the campers setting out on the high-stakes rescue mission to save Artemis, the Goddess of the Hunt, and find Annabeth.

The tone of the novel takes a darker turn as the oracle delivers a chilling prophecy, hinting at a traumatic event that will shake the foundations of the protagonist's world. This prophecy sets the stage for the overarching conflict of the story and creates an atmosphere of uncertainty and impending doom.

With the Oracle's warning hanging over their heads, Percy and the others set out to find Artemis and Annabeth by navigating treacherous paths, making sacrifices to fulfill their destinies, and facing the powerful and vengeful Titans who are determined to rain down destruction and chaos upon the world.

The presence of the oracle also introduces an element of mystery and intrigue. As the characters unravel the layers of the prophecy and seek to understand its true meaning, they are forced to confront their limitations and make difficult choices. This adds a psychological depth to the story, as the characters grapple with their fears and navigate the blurred lines between right and wrong.

The oracle's importance in The Titan's Curse sets a dark and foreboding tone, infusing the story with tension, uncertainty, and a sense of impending danger that waits in the shadows. Through her prophecies, Percy and his friends are confronted with the harsh realities of what the future might hold if the Titans get their way.